64154047 has 2 divisors, whose sum is σ = 64154048. Its totient is φ = 64154046.

The previous prime is 64154033. The next prime is 64154071. The reversal of 64154047 is 74045146.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64154047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64154017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32077023 + 32077024.

It is an arithmetic number, because the mean of its divisors is an integer number (32077024).

Almost surely, 2^64154047 is an apocalyptic number.

64154047 is a deficient number, since it is larger than the sum of its proper divisors (1).

64154047 is an equidigital number, since it uses as much as digits as its factorization.

64154047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 64154047 is about 8009.6221508883. The cubic root of 64154047 is about 400.3206741016.

The spelling of 64154047 in words is "sixty-four million, one hundred fifty-four thousand, forty-seven".